USB 2.0 High-Speed 4-Port Hub Controller
Datasheet
Chapter 6 AC Specifications
6.1
Oscillator/Clock
Crystal: Parallel Resonant, Fundamental Mode, 24 MHz ±100ppm.
External Clock: 50% Duty cycle ± 10%, 24/48 MHz ± 100ppm, Jitter < 100ps rms.
6.1.1
SMBus Interface:
The SMSC Hub conforms to all voltage, power, and timing characteristics and specifications as set
forth in the SMBus 1.0 Specification for Slave-Only devices (except as noted in Section 4.4, "SMBus
Slave Interface").
6.1.2
6.1.3
I2C EEPROM:
Frequency is fixed at 58.6KHz ± 20%.
USB 2.0
The SMSC Hub conforms to all voltage, power, and timing characteristics and specifications as set
forth in the USB 2.0 Specification. Please refer to the USB 2.0 Specification for more information.
Revision 1.92 (05-08-07)
SMSC USB2514
DATA4S4HEET
SMSC [ SMSC CORPORATION ]
